Manitoba hut to 3700 ft on Manitoba ridge.
Temps: mid teens F
Recent Avalanches: None
Shooting Cracks: None
Collapsing: One localized collapse around 2500 ft near brush that was poking through the surface.
Buried surface hoar found in a pit adjacent to this collapse.
1000-1800′ packed snow covered approach trail with a few rocks pocking through. Very low snow
cover off trail
1800-2000′ breakable surface crust with 30-50cm total snow depth
2000-2500′ 5-10cm loose snow over variable firm crust. 50-75 cm total snow depth. 2-4mm surface
hoar on the snow surface.
2500-3700′ variable wind scoured snow surface with wind loaded pockets of loose snow. 1-3mm
surface hoar on the snow surface.
Below the surface:
Found buried surface hoar layer above a crust at 2500′ which propagated in two extended column
tests. This layer was buried 25 cm deep in a wind protected area at tree line. There was also a
localized collapse adjacent to this snow pit site. In a wind loaded area at 3200′ we found another
layer of buried surface hoar at a hardness change from pencil to one finger 30cm deep. This layer
also propagated in two extended column test but was very difficult to located visually in the pit wall.
1 @ 2500′ at tree line. Aspect: W, HS: 75cm. Buried surface hoar over a crust layer 25cm deep.
Results: ECTP11 SC, ECTP12 SC at buried surface hoar layer 25cm from surface.
1 @ 3200′ on leeward side of Manitoba ridge. Aspect: SW, HS: 105cm. Buried surface hoar at
hardness change from pencil to 2 cm layer of one finger then returning to pencil. Buried 30 cm from
surface. Results: ECTP18 RP, ECTP16 RP at buried surface hoar layer 30 cm from surface.